I must agree defining what a ‘top collection’ looks like would be very difficult and very subjective. There is general acknowledgement that DPersin’s collection is a top collection. To me, Scott’s collection is also a top collection because of my bias towards trophy cards. I’m sure there are other top collections within the UPCCC community that would not include a single trophy card.
Every collector will aspire to own a top collection. For this reason, I’m hesitant to set a ‘criteria’ for top collection as this may discourage some from the hobby altogether if it becomes too difficult or costly to assemble one.
Just my 2 cents worth. Thanks.